Download and merge WorldClim data for study area

Usage

get_worldclim(coords, res = 0.5, buff = 0.01, save_output = FALSE)

Arguments

coords: Dataframe with x and y sample coordinates.
res: The resolution of WorldClim data to download; options are 0.5, 2.5, 5, and 10 arc-minutes (default = 0.5).
buff: A buffer area around sample points for cropping the data layers, expressed as a proportion of the spatial extent for the coordinates (default = 0.01).
save_output: Whether to save downloaded worldclim data in a tmp folder in the working directory (default = FALSE).

Value

A SpatRaster of WorldClim layers.

Details

If res = 0.5 then the individual WorldClim tiles that cover the sample coordinates are downloaded and merged. If res > 2.5 then global layers are downloaded. The buffer area maintains a large extent for the final cropped data layers around the sample coordinates. e.g. buff = 0.01 creates a 1% buffer area around the coordinates.